Spring Framework IllegalArgumentException'dataSource'或'jdbcTemplate'是必需的JAVA

Question

我正在尝试编写配置了注释的spring应用程序。我已经定义了一个dataSource和jdbcTemplate，我确信spring初始化它们（当评论它们时我有一个例外，告诉我这个bean没有被初始化）。我不知道为什么在初始化bean时我有这个异常。我将复制xml，dao类和stacktrace。

XML

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="org.postgresql.Driver" />
        <property name="url" value="jdbc:postgresql://localhost:5432/test" />
        <property name="username" value="root" />
        <property name="password" value="root" />
    </bean>

    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <constructor-arg>
            <ref bean="dataSource" />
        </constructor-arg>
    </bean>

</beans> 

道

@Repository
public class DomainsDao extends JdbcDaoSupport {

    @Autowired
    private MessageSourceAccessor msa;

    @Autowired
    private JdbcTemplate jdbcTemplate;

    public List<Domain> getInactiveDomains() {
        return jdbcTemplate.query(msa.getMessage("sql.pass.domain.select_inactive"), new DomainRowMapper());
    }
public int getDomainId(String name) {
        String sql = msa.getMessage("sql.pass.domain.select_by_name");
        Object[] args = new Object[] { name };
        return jdbcTemplate.queryForObject(sql, args, Integer.class);
    }
}

堆栈跟踪

java.lang.IllegalArgumentException: 'dataSource' or 'jdbcTemplate' is required
    org.springframework.jdbc.core.support.JdbcDaoSupport.checkDaoConfig(JdbcDaoSupport.java:111)
    org.springframework.dao.support.DaoSupport.afterPropertiesSet(DaoSupport.java:44)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1631)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1568)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1120)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
    org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1208)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1120)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
    org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1208)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:667)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:633)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:681)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:552)
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:493)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)

编辑我将添加所有配置

的web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    id="WebApp_ID" version="2.5">
    <description>
    SaaS Admin
  </description>

    <display-name>SaaS Admin</display-name>

    <!-- <error-page> <error-code>404</error-code> <location>/error404.jsp</location> 
        </error-page> -->

    <servlet>
        <servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                /WEB-INF/conf/app-config.xml
            </param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

应用-config.xml中

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:task="http://www.springframework.org/schema/task"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd">

    <!-- Scanning package with configuration files -->

    <context:component-scan base-package="bg.abv.saas.admin.config" />

    <!-- Application Message Bundle -->

    <bean id="messageSource"
        class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
        <property name="basenames">
            <list>
                <value>WEB-INF/props/configure</value>
                <value>WEB-INF/props/sql</value>
                <value>WEB-INF/props/strings</value>
                <value>WEB-INF/props/log4j</value>
            </list>
        </property>
        <property name="defaultEncoding" value="UTF-8" />
        <property name="cacheSeconds" value="60" />
    </bean>

    <bean id="msa"
        class="org.springframework.context.support.MessageSourceAccessor">
        <constructor-arg>
            <ref bean="messageSource" />
        </constructor-arg>
    </bean>

WebServletApplicationInitializer

@EnableWebMvc
@Configuration
@ComponentScan("bg.abv")
@ImportResource(value = { "/WEB-INF/conf/data-source.xml" })
public class WebServletApplicationInitializer extends WebMvcConfigurerAdapter {

    @Bean
    public InternalResourceViewResolver viewResolver() {
        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
        viewResolver.setViewClass(JstlView.class);
        viewResolver.setPrefix("/WEB-INF/views/jsp/");
        viewResolver.setSuffix(".jsp");
        return viewResolver;
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/WEB-INF/resources/*");
    }

data-source.xml 此文件的内容是包含dataSource和jdbcTemplate bean的xml文件。

Answer 1

我认为你应该在你的DomainsDao中放弃jdbcTemplate的自动装配并注入你的dataSource。然后通过调用org.springframework.jdbc.core.support.JdbcDaoSupport#getJdbcTemplate方法获取jdbcTemplate。

示例：

@Repository
public class DomainsDao extends JdbcDaoSupport {

    @Autowired
    private MessageSourceAccessor msa;

    @Autowired
    public void setDs(DataSource dataSource) {
         setDataSource(dataSource);
    }

    public List<Domain> getInactiveDomains() {
        return getJdbcTemplate().query(msa.getMessage("sql.pass.domain.select_inactive"), new DomainRowMapper());
    }
    public int getDomainId(String name) {
        String sql = msa.getMessage("sql.pass.domain.select_by_name");
        Object[] args = new Object[] { name };
        return getJdbcTemplate().queryForObject(sql, args, Integer.class);
    }
}

如果您仍想注入自己的jdbcTemplate，则需要采用类似的方法：

@Repository
public class DomainsDao extends JdbcDaoSupport {

    @Autowired
    private MessageSourceAccessor msa;

    @Autowired
    public void setJT(JdbcTemplate jdbcTemplate) {
         setJdbcTemplate(jdbcTemplate);
    }

    public List<Domain> getInactiveDomains() {
        return getJdbcTemplate().query(msa.getMessage("sql.pass.domain.select_inactive"), new DomainRowMapper());
    }
    public int getDomainId(String name) {
        String sql = msa.getMessage("sql.pass.domain.select_by_name");
        Object[] args = new Object[] { name };
        return getJdbcTemplate().queryForObject(sql, args, Integer.class);
    }
}

Answer 2

你能试试吗，

<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
    <property name="dataSource" ref="dataSource" />
</bean>

Answer 3

问题是您继承的JdbcDaoSupport类已经具有您需要设置的jdbcTemplate属性。 JdbcDaoSupport检查您是否在其afterPropertiesSet方法中提供了jdbcTemplate或dataSource属性。但是你要声明并注入自己的jdbcTemplate意味着DomainsDao有两个jdbcTemplate属性（一个你声明的属性加一个继承自JdbcDaoSupport）

您可以通过从calss声明中删除extends JdbcDaoSupport部分来解决此问题。

或者，如果您真的想从JdbcDaoSupport继承，那么按以下方式更改您的类

@Repository
public class DomainsDao extends JdbcDaoSupport {

    @Autowired
    private MessageSourceAccessor msa;

    @Autowired
    public DomainsDao (JdbcTemplate jdbcTemplate){
       setJdbcTemplate(jdbcTemplate);
    }

    public List<Domain> getInactiveDomains() {
        return getJdbcTemplate().query(msa.getMessage("sql.pass.domain.select_inactive"), new DomainRowMapper());
    }
public int getDomainId(String name) {
        String sql = msa.getMessage("sql.pass.domain.select_by_name");
        Object[] args = new Object[] { name };
        return getJdbcTemplate.queryForObject(sql, args, Integer.class);
    }
}